Gage-glass holder.



. G. DUWBAB.

GAGE GLASS HOLDER.

APPLIGATXON FILED PEB.19,1912.

1,@50592@ Patented Jan.

I Y y I @ei/7,4 may iras ra FRANK G. DUNIBAR, OF CHECAGQ ILLINOIS,ASSIGNOR T0 SARGENT COMPANY, OF CHICAGO, ILLINOIS, A COR?ORATION 0FTELLINOIS.

GAGE-GLASS HOLDER.

Specification of Letters yatent.

rammen aan. ai, iota..

To all whom z' may concern:

Be it known that I, FRANK G. DUNBAR, a citizen .of the United States,residing at Chicago, in the county of Cook and State of illinois, haveinvented certain new and useful Improvements in Gage-Glass Holders, ofwhich the following is a specification.

This invention relates in general to gageglass holders and aims toproduce a device of this character, particularly adapted for employmentin connection with gage glasses whichare connected at one end with agage cock and at their upper ends with the top of a boiler through aflexible connecting tube, which will afford a simple and effectivedevice for holding the tubular gage glass, to prevent verticalseparation of the connections at the ends of the gage glass, and.

which will provide for the protection of the gage glass withoutobstructing the view of the same and will prevent particles of brokenglass from flying in the cab in case the gageglass should burst orbecome otherwise accidentally broken while in use.

For the purpose of facilit-atin the explanation of 'my invention l havei lustrated on the accompanyingv drawings one practical form thereoffrom a consideration of which, in connection with the followingdescription, the invention in one of its preferred embodiments will bereadily understood.

Referring to the drawingsw-Figure 1 is a front elevation of a gage glassholder embodying my invention; Fig. 2 is a longitudinal sectional viewthereof; and Fig. 3 is a transverse sectional view taken on the line3.-.3 of Fig. 1.

By reference to "the drawings it will be observed that a gage cock 5 ofany well known or preferred construction is threaded into the end of'aboiler 6 in the usual way. Iii-certain types ot' gages a companion gagecock, similar to the cock 5 illustrated, is also threaded into theboiler end some'distance above the lower cork, but in the form of gagewit-h which my invention is particularly adapted to be used the upperend of the gage glass is connected with the top of the boiler through aflexible tube. 'This manner of connecting the gage with the top of theboiler is believed by many to possess certain advantages in that drysteam from. the top of the boiler is introduced into the gage-glassabove the water level therein reardless of the height of the water inthe oiler. 1When a flexible tube is employed' to connect the upper endof the gage-glass with the boiler, obviously some rigid form of supportmust be employed for holding the gageglass and preventing lateralmovement of the upper end thereof which would result in breaking theglass. It is for the purpose of providing a rigid support for thegageglass, to prevent breakage of the same and also for the purpose ofholding a'gageglass shield around the gage-glass, that my presentinvention was designed.

The gageglass 7, f usual construction and any desired length, has itslower end connected with the gage cock -5 in the usual manner. Theholder, designated generally by reference character 8, is preferablymade integral and for cheapness in manufacture may be cast in one prisesa back provided with a longitudinally extending opening 9 through whichlight may pass so that the water level in the gage-glass may be readilyobserved. The back is provided at its side edges with forwardlyextending flanges 1() and 11, respectively, adapted to receivetherebetween the rear edges of a horseshoe-shaped shield 12. The ends ofthe holder are provided with forwardly extend-ing upper and lowerflanges 13 and 14.-, respectively, between which the upper and lowerends of the shield 12 are adapted to be slid into position. The lowerend of the holder is threaded' as indicated at 15 for engagement withthe gage cock and the upper end is similarly threaded at 16 forengagement with a coupling 17 to which the flexible tube f8 connected atone end with the top of the boiler is attached by means of the packingnut 19. It Will be noted that the threaded sockets 15 and 16 formtubular couplings carried by the respective ends ofv the holder.

piece. This holder com-4 noholder provided for steadying the glass.

The shield 12, preferably made of wire glass,

is slipped into vposition between the upper.

and lower flanges 13 and 14: so that its rear edges are embraced by theside flanges 10 and 11. The flanges 13 andlll are pfvid'd with openingsto receive a retaining and locking rod 2/0.r This rod is preferably madeof spring material and is curved as shown in-Fig..2 so that afterit isinserted through the flanges 13 vand 14 it maybe given a quarter turninto the position'shown in Fig. 2 to bring the bent pont-ion intoengagement with the shield 12 thereby forcing it tightly against theholder and locking it in place and preventing it froln rattling. Inorder to hold the rod 20 lin locked position the opening 21 in theflange 13 is preferably elongated, as shown in Fig. 8, to receive thelower portion of the loop 22 formed on the upper end of the rod 2()whereby said rod is prevented from turning. A small key E23 may beinserted through the lower end ofthe rod, if desired, to prevent thesame from working out. l

From ,the foregoing it will be manifest that I have provided a simpleand, substantiall holder adapted to steady the upper end of thegage-glass and also to' afford a Support for a gage-glass shield. Theflanges on the holder, together. with the locking fed, retain the shieldin position around lthe glass thereby' protecting the engineer fromflying` fragments. in case the gage-glass should become broken and-,theopen back of the holder together with the glass shield permit the waterlevel in the gage-glass to be readily observed. Furthermose, it will beobvious that while protecting the gageglass and also affordingAprotection to the engineerl have not obscured the gage-glass .or placedany obstacles around the glass which would interfere withits-observation.

The invention, however, is, inV its broad as- I peet, not limited to thedetails vof', construc tion illustrated and described, but obvipuslyopen to expose the tubular gage glass to ,l

view, a tubulancoupling provided upon each of .theftopand bottom flangesin alinement with the opening therein, and a gage glass protectorcarried by the holder and extendl' ing from one flange to the otherflange, substantially as described.

3. A gage glass holder vcomprising a backv having top and bottom flanges-projecting at the front of theback and'rigidly fixed thereto, saidflanges havingalined openings for the reception of a tubular gage glass,the front and sides'of the holder being open to expose the tubular gageglass to view, a tubular coupling provided upon each of the top andybottom flanges in alinement with the opening therein, and a gage glassprotector carried by the holder and extending from vone flange to theother flange, each of the flanges having port-ions` extending in front`of the protector and provided with openings, and a locking rod extendingthrough said openings and incontactl with the protector to hold the sameagainst lateral displacement.

4:. A gage-glass protector comprising a holder adapted to accommodate agage-glass anda gage glass shield said holder including a back providedon its longitudinal edges with flanges to accommodate therebetween thelongitudinal edges of the gage-glass shield and provided at it-s topandvbottom with flanges rigidly fixedto the back and adaptedtoaccommodate therebetween the ends of said gage-glass shield.

5. In a gage-glass protector, the combinal tion of a holder adapted'forengagement at one end with a gagecock and at its other end with aflexible tube, said holder being provided with oppositely disposedflanges, a gage-glass shield positioned between said flanges, andyielding means for locking said .shield in position.

6. In a gage-glass protector, the combination of a holderadapted forconnection at its ends with a gage cock and a flexible tube,

said holder being provided with side flanges and top and bottom flanges,a gage-glass shield positioned between said flanges, andv a resilientbent rod engaging with said upper and lower flanges `and adapted-toyieldingly lock said shield in position.

7. In a gage glass holder and protector,

kthe combination of a,y holder comprising a ally slid into and out ofoperative position, back provided at its top and bottom with and meansto detachably retain the shield outstanding ianges -iixed to the back, aupon the holder,substantia1ly as described.

gage glass shield disposed between sald FRANK G. DUNBAR 6 anges,' thespace between the flanges being Witnesses:

unobstructed at the front of the device to IRA J. WILSON,

permit of the gage glass shield being later- M. A. Kmnm

